syrup sticking in coating tumblers

[chemico_imported]

I would like to know if there are available materials that are resistent to sugar syrups, i.e., sticking on the sides. you see in our syrup application process for breakfast cereals, our coating tumblers always go on shutdown every 8 hrs for cleaning. total solids of the syrup is 75%, and is composed of about 55% sucrose. thanks

 

[azertyuiop]

I would look for a supplier able to test coat the inside of one of your vessels with a 'Teflon' or PTFE layer type , as a trial. However I am doublfull this will solve your sticky product solution definitively , maybe retard it , allowing you to have longer periods inbetween two cleanups.

I had a client in the bakery world who had a pain in the butt powder component , that very hygroscopic powder became liquid as soon as the surrounding air contained some humidity , with bridging and clogging of that vessel in summer as a result.

The vessel had a capacity of 15 liters , I had it coated with a green looking PTFE teflon , it retarded significantly the start of the clogging process.

 

[chemico_imported]

Thank you for your reply, azertyuiop. however, would teflon paint similar to the ones used in cooking or frying pans work? because i think this is much easier to simulate the effects if ever i need to go into coating the tumbler itself.

 

[azertyuiop]

basically : I suppose yes. However , there are many sort of industrial teflons. The one I am refering to wasn't black but green , couldn't be scraped away form the vessel wall , even when sticking it with a razor sharp knife , because it contained 'carbure' , which made it so resistant that you couldn't get it off by usual mechanical wearing. They used it for heavy duty pumps axes at very high temperature fluids , to reduce the needed maintenance , thus not the common kitchen appliance teflon.

But for a test , this kitchen teflon could be worth a trial , before getting the wallet out for more appropriate trials.

 

[mx2mx2]

There is a product similar to PTFE that has good no stick abilities and is much easier to apply. It is basically a wipe on coating and wipe off the excess. It is self bonding and safe. I have used it for mold release and other projects. It can be found at

http://www.kiss-cote.com.

Malcolm

 

[JTreglio]

The problem with any of the coatings that you describe is that they scratch easily. Remember that you can't use metal utensils on a Teflon-coated frying pan. My wife goes bonkers if I even come close to one of her pans with a metal implement.

We've got a PVD coating that we apply to medical devices that is pretty inert. I don't think your syrup will stick to it. At least, we've not found anything that will stick to it.

Jim Treglio
Molecular Metallurgy, Inc.